# Reaction Time Training vs UruSainen

The clearest difference is in-app purchases: UruSainen at none against Reaction Time Training's 13. Reaction Time Training's advantage is ads (none vs shown) and update cadence (every 10 days vs every 4 months). On price there is nothing between them.

Both are free to download. Reaction Time Training sells 9 in-app purchases, starting at $2.99 per 7 days. UruSainen asks for nothing beyond the download.

Reaction Time Training ships an update every 10 days, UruSainen every 4 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Reaction Time Training | UruSainen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (203 ratings)](https://appshunter.io/ios/app/reaction-time-training-rtap/id6560115310/reviews)** | — |
| Number of ratings | **203** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 89 MB | 22 MB |
| Requires iOS | **15.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Jan Augustyniak](https://appshunter.io/developer/1739379260) | [Yasuhiro Hamada](https://appshunter.io/developer/1825750232) |

## What reviewers say

### Reaction Time Training

[App page](https://appshunter.io/ios/app/reaction-time-training-rtap/id6560115310)

Enhance your reflexes with engaging mini-games designed to test and improve reaction speed. Track your progress, compete with friends in duels, and climb leaderboards to unlock achievements. Ideal for anyone looking to sharpen their reaction time.

**Highlights:** Reaction time testing, Challenging mini-games, Progress tracking, Friend duels, Leaderboards, Achievement unlocking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $2.99 | per 7 days |
| Unlimited Access | $4.99 | per month |
| Unlimited Access | $4.99 | per 7 days |
| Unlimited Access | $7.99 | per month |
| Unlimited Access | $19.99 | per year |
| Unlimited Access | $19.99 | per year |
| Unlimited Access | Free | one-time |
| Unlimited Access | $14.99 | one-time |
| Unlimited Access | $29.99 | one-time |


### UruSainen

[App page](https://appshunter.io/ios/app/urusainen/id6756487439)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time Training free?

Reaction Time Training is free to download, with in-app purchases available.

### Is UruSainen free?

UruSainen is free to download, with no in-app purchases.

### Do Reaction Time Training or UruSainen have ads?

UruSainen shows ads; Reaction Time Training does not.

### Which is updated more often, Reaction Time Training or UruSainen?

Reaction Time Training ships an update every 10 days, and UruSainen every 4 months. Most recently, Reaction Time Training was updated on September 24, 2026 and UruSainen on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*